#!/usr/bin/python
# -*-coding: UTF-8 -*-
"""
# Time: 2021/10/23 21:08
# @Author: 修养
# @Project_name: PROJECT_NAME
"""

a = 20
b = 30
print(a + b)
print(a - b)
print(a * b)
print(a / b)
print("//：", a // b)
print("求余：", a % b)

print(a == b)
print(a != b)
print(a > b)
print(a < b)
print("~~~~~~~~~1111111111~~~~~~")
# 2、逻辑运算
print(a > 0 and b < 0)
print(a > 0 or b < 0)
print(a not in [10, 20, 30])
# 3、布尔表达式
c = True
d = False
